LIGHTING SYSTEM Interior Light Power Source Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the solid-state relay, that is built into the roof console box assembly, to supply power to the interior lights.

WIRING DIAGRAM

A01W2JJE01

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. INSPECT ROOF CONSOLE BOX ASSEMBLY


    1. Remove the roof console box assembly Click here.

    2. Inspect the roof console box assembly Click here.

      OK
      Roof console box assembly is normal.
      Result
      Result Proceed to
      OK (w/o Stop and start system) A
      OK (w/ Stop and start system) B
      NG C

    B

    CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ROOF CONSOLE BOX ASSEMBLY) Click here

    C

    REPLACE ROOF CONSOLE BOX ASSEMBLY Click here

    A

  2. CHECK HARNESS AND CONNECTOR (DOME FUSE - ROOF CONSOLE BOX ASSEMBLY)


    1. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      T10-4 (+B1) - Body ground Engine switch off 11 to 14 V
      T10-5 (+B5) - Body ground Engine switch off 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (ROOF CONSOLE BOX ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the H11 main body ECU (multiplex network body ECU) connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      T10-7 (CILL) - H11-2 (DOMR) Always Below 1 Ω
      T10-7 (CILL) - Body ground Always 10 kΩ or higher

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ROOF CONSOLE BOX ASSEMBLY)


    1. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      T10-4 (+B1) - Body ground Engine switch on (IG) 10.5 to 16 V
      T10-5 (+B5) - Body ground Engine switch on (IG) 10.5 to 16 V

    NG

    GO TO STOP AND START SYSTEM Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (ROOF CONSOLE BOX ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the H11 main body ECU (multiplex network body ECU) connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      T10-7 (CILL) - H11-2 (DOMR) Always Below 1 Ω
      T10-7 (CILL) - Body ground Always 10 kΩ or higher

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR